Snap the chocolate into a large bowl, add the butter and place over a pan of simmering water, until melted, stirring regularly. Leave to cool. Dissolve the coffee in a 2 tbsp hot water.

In another bowl mix together eggs, sugar and dissolved coffee. Add melted chocolate. Fold in the flour, walnuts and dark chocolate chips. Pour the brownie mix into the baking tin, and place in the oven for around 45 minutes. The brownies should be slightly springy on the outside but still gooey in the middle. Leave to cool. Enjoy !!!!!!!!